A Novel Multifunctional p-Type Semiconductor@MOFs Nanoporous Platform for Simultaneous Sensing and Photodegradation of Tetracycline

Abstract

p-Type semiconductors enable new opportunities for the development of photocatalysts. Metal–organic frameworks (MOFs) could now be manufactured for a wide range of applications. The zeolitic imidazolate framework-8 (ZIF-8), in particular, shows important desirable properties like good stability and a high surface area. Considering the p-type semiconducting intrinsic catalytic performance of CuBi2O4 (CBO) and the unique porous nanostructure and stability of ZIF-8, in this paper, we innovatively propose and investigate a new p-type semiconductor@MOFs (CBO@ZIF-8) material. Moreover, we focus on its application as a novel dual-function platform for simultaneous detection and degradation. The experimental results reveal that the platform is well suited for absorption, degradation, and fluorescent detection of certain targets. Using the contaminant, antibiotic tetracycline, as an example, the platform confirms excellent fluorescence sensing performance and good photodegradation properties under visible light. These results could aid the future design and implementation of novel and more sophisticated multifunction p-type semiconductor@MOFs platforms. The presented strategy represents the early stages of a future, genuine, general, multifunction platform.

NH2-MIL-88B (FeαIn1−α) mixed-MOFs designed for enhancing photocatalytic Cr(vi) reduction and tetracycline elimination

“…[19][20][21] There are many current ways to remove TC-HCl, including adsorption, 22 advanced oxidation processes (AOPs), 21 biological degradation, 23 electrolysis, 24 membrane ltration, 25 ion exchange 26 and photocatalytic degradation. 27,28 Photocatalytic degradation is widely used in recent years because of mild reaction conditions, high efficiency, low cost and greenly. 20,[29][30][31] Metal-organic frameworks (MOFs), as a class of crystalline inorganic-organic hybrid materials, are composed of the interconnection between metal centers and multidentate organic ligands.…”

Target-Dependent Gating of Nanopores Integrated with H-Cell: Toward A General Platform for Photoelectrochemical Bioanalysis

“…Its composition was further verified by energy-dispersive X-ray spectroscopy (EDS) shown in Figure f, which reveals the peaks matched well with the elements of zinc, indium, sulfur, and oxygen in the ZnInS NFs sample, and the results agreed well with X-ray photoelectron spectroscopy (XPS) shown in Figures S5 and S6. As illustrated in Figure S7, the UV–vis diffuse reflectance spectra of the electrode revealed that it exhibited an excellent light-harvesting ability with a narrow energy gap (about 2.71 eV) calculated according to the Tauc plot Figure S8 depicts the X-ray powder diffraction (XRD) characterization of ZnInS NFs that the diffraction peaks could be indexed to JCPDS card no.…”

A Review of MOFs and Their Composites‐Based Photocatalysts: Synthesis and Applications

“…[ 84–86 ] During the hydrothermal reaction process, the reaction conditions, including the reaction temperature, precursors, solvents, pH and the reaction time can be flexibly adjustable. [ 87–89 ] Through careful majorization of the synthesis conditions, the MOFs and their composites with controllable size and structure can be easily obtained. Taking the advantages of the hydrothermal reaction method, numerous research groups employed this method to synthesize high‐performance MOFs and their composites‐based photocatalysts.…”